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Finding the Fourth Proportional to 238,608.90, 357,905.13 and 61,117.44

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Solution

The fourth proportional to 238,608.90, 357,905.13 and 61,117.44 is: 91,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,608.90 : 357,905.13 = 61,117.44 : x
  2. Step 2: Convert to fraction form
    238,608.90/357,905.13 = 61,117.44/x
  3. Step 3: Cross multiply
    238,608.90x = 357,905.13 × 61,117.44
  4. Step 4: Simplify right side
    238,608.90x = 21,874,245,308.47
  5. Step 5: Solve for x
    x = 21,874,245,308.47/238,608.90
  6. Step 6: Final answer
    x = 91,674.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.